Actuating apparatus for railway-brakes.



No. 628,944. Patented luly l8, I899. A. KHULODKOWSKY. ACTUATINGAPPARATUS FOR RAILWAY BRAKES.

(Application filed Feb. 26, 1898.1

2 Sheets-Sheet I.

"do Model.)

No. 628,944. Patented July l8, mes.

A. KHOLODKOWSKY. 'ACTUATING APPARATUS FOR RAILWAY BRAK (Applicationfiled Feb. 26, 1898.,

(No Model.)

2 Sheets-Shaet 2.

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ANDRE KITOLODKOTVSKY, OF KICHINEFF, RUSSIA;

srEcIrIcA'rIoN forming part of Letters Patent No. 62 flatd J 111; 1899-Application filed February 26,1898. Serial No. 671,875. (N0 model.)

T0 at whom it may concern.-

Be it known that I, ANDRE KHOLODKOW- SKY, a subject of the Czar ofRussia, residing at Kichineff, Russia, have invented certain new anduseful Improvements in Railway- Brakes, of which the following is afull, clear, and exact description.

This invention relates to apparatus for effooting the automaticoperation of the brakes of a train in the case of derailment or anaccident of any kind happening to the rollingstock.

It has for its object the production of an apparatus of easy regulationthat will register or record, so to speak, simultaneously the abnormalmovements of the axles of a vehicle and the abnormal displacements ofthe body of the vehicle. According thereto there is secured to thecollar of one or'more of the sprin gs of a vehicle a bent bar furnishedwith impact bolts or plates that participate in the movements of thespring, and between these impact bolts or plates there is arranged avalve that participates in the movements of the body of the vehicle, thearrangement being such that any abnormal displacement either of the axleor of the body of the vehicle will result in effecting the automaticopening of the valve, and consequently the automatic operation of thebrakes of the train.

In the accompanying drawings is represented by way of example avehicle-axle furnished with apparatus in accordance with this invention.

Figures 1 and 2 show, respectively, a front elevation and an end view ofthe invention.

Fig. 3 is a separate View of the arrangement for controlling the valve.This arrangement comprises a bent bar 0, fixed by means of a support orbracket a to the collar of one of the springs M of the vehicle, whichrests upon the axle-bearing S. The bar is secured to the support orbracket by means of nuts, so as to be adjustable therein. This bar 0 hastwo horizontal arms, which project in opposite directions from its endsand in which are mounted two vertical bolts 1) p of adjustable length,whose heads form two impact plates or knobs arranged opposite to eachother. Between these plates there is mounted on an axle g, carried by asupport or bracket (1, fixed to the a valve X, whose casing is fixedonthe pro longation of the said axle g and is connected by a pipe 1', Fig.2, with the main pipe or passage for controlling the brakes. When in itsnormal position, the said lever D is midway between the twoimpact-knobs 1) p of the bent bar 0. As long as the lever D occupies itsnormal position the valve X will be kept closed; but in the case of anabnormal compression of the vehicle-spring or of an. abnormal movementof the body of the vehicle one of the plates 6 c of the lcverD willstrike against the corresponding impact-knobofthe bent bar 0. From thiswill result an angular displacement of the lever D, and consequently theopening of the valve X under the action of the said toothed cam oreccentric portion, which will afterward keep the valve X open. Likewisein the case of atire rupture, a derailment, &c., the other plate of thelever will strike against the corresponding plate of the bent bar, whichwill again bring about an angular displacement of the lever D in thesame sense as before, and consequently the opening of the valve X. Itwill therefore be seen that the apparatus will operate with certainty inall cases and that if the regulation be sufficiently exact the apparatuswill be capable of registering or recording every compression orextension of the springs exceeding a given limit.

Apparatus of the kind described maybe applied in general to all theaxles of a vehicle, although good results are obtained when in the caseof a vehicle having three axles only the middle axle is provided withsuch an apparatus or in the case of a vehicle with two axles when onesuch apparatus is placedat one end of one of the axles and another isplaced at the opposite end of the other axle.

hat I claim is- In an apparatus for effecting the automatic operation ofthe brakes of a train, in combination a bent barsecured to the collar ofthe springs of a railway-vehicle, impact bolts or knobs adjustable tosaid bent bar, an oscil- In Witness whereof I subscribe my signalatinglever mounted on an axle adapted to a tu re in presence of twowitnesses. support fixed to the frame of the vehicle, a Y toothed camfixed on said oscillating lever and AND-RE KHOLODKOWSIXY 5 a valveadapted to actuate the brakes and \Vitnesses: i

controlled by said toothed cam, substantially THOMAS E. I-IEENAN, asdescribed. THOMAS MILES;

